568 cu n/a running a felpro 1067 seems to rot after 1 year,'any ideas thanks.

You might try a MLS, either Felpro or Cometic.

I have had good luck with the fel-pro 17048.

Call Bob @ Performance Gaskets Concepts, in Germantown WI tell him I sent you. Graphite with stainless steel core nothing but the best! alot of us use them I just can't mention who. You'll by at retail, but I'am not here to sell to you, just help!